Valve for pneumatic tires.



`Patented Sept. 4, |900.

` C. J; MEAD.

VALVE FOR PNEUMATIC TIRES.

(Application filed Mar. 15. 1900.`

(No Model.)

(1H/omvang.'

WDDDDDDDDDDDDD\III To (LZZ whom' it rma/y concern/,1

. NIT-ED f STATESI QPATENT- Ormes.

` CHANCY J. MEAD, or'nnw wINDsoR, nQmNoIsg VALVE` Foa` `Pmi-:uMA1-vlo``Tim-:3.

sPEomIcATIoNlforming `part of Letters catene No. 657,431, datedseptember-i1 1900.

Application filed `March `15J, 19 0Q. Serial No. 8,785. (o model.)

Be it known that l, CLL-ANOS? J MEAD, a

zen of the United States, residing at "New Windsor, in the county ofMercer and State, of Illinois, have invented a certain new andl usefulValve for PneumaticTiremgof which the following `is a specification,reference be-l ing had therein to the accompanyingdraw-v ings. f 'f iThis invention relates to valves especially designed forl pneumatictiresggand theobject in View is to provide a valve `of simple con-Qstruction which may be applied toany pneu-Y matic tire and which may bequickly and readily removed and the several parts thereof disassociatedfor repair and adjustment.` Valves as ordinarily constructed` arediflifcult `to re` pair and require in most instances the service of anexpert mechanic.

necessity of carrying tools for the purpose.

Another object is to make the valve per' se of a construction which`will enable a newI valve-face or packing-washer to` be applied` when theold one becomes worn and inoperative.

Other objects and advantages of the invention will appear in the courseof the subjoined description.

The invention consists in a valve embodying certain novel features anddetails of construction and arrangement of parts, as hereinafter fullydescribed,illustrated in t-he drawings, and incorporated in the claim.

In the accompanying drawings, Figure 1 is a central longitudinal sectionthrough a. valve constructed in accordance with this invention, showingalso a section of a single-tube pneumatic tire with which the valve isassociated. Fig. 2 is a perspective view showing the several members orparts of the valve disassociated. Fig. 3 is a sectional view similar toFig. 1, showing a different type of valve designed for use in connectionwith the rubher valve-tube of a pneumatic tire.4 Fig. 4.

is a perspective view showing parts of said valve disassociated. Similarnumerals of reference are employed Ato indicate corresponding parts inall the iigures of the drawings.

`Referring to the drawings, and 4particularly to Figs. 1 and 2, 1designates a section `of a pneumatic tire, and 2 a portion of the rimtowhich the tire is secured.

` In carryiugoutthe presentinvention I ein- .ploy a metal valve-casing 3ofcylindrical form ,and exterliorly screw-,threaded,` as indicated .at4j. [Atene end the casing. 3 is provided withan enlarged head 5,provided in its `outer `facevi-'ith a disk-shaped recess 6, in which isplaced `.a liush seating-valve 7, which is in the form `of a disk andwhich u is attached to one i end of a valve-stem 8, passinglongitudinally through a central bore Qin the casing` 3 and terminallyscrew-threaded, as shown at 10. `Placed against the innerface of` thevalve 7 iS 2L paoklgrwasher 11, which surrounds the stein 8. n Thispackingwasher maybe removed when worn and anew` one substitutedtherefor. `-In order to preventthevalve and its stem `from turning, thestein 8 is provided with a laterally-projecting key 12, which fits in akeyway 13 in the form `of a groove extending longitudinally of thecasing and forming an oifset fromnthe central bore thereof. The casingis also provided with an internal annular shoulder or seat 14, againstwhich bears one end of a coiled spring 15, the opposite end of whichbears against a nut 16, which is threaded upon the end of the valvestem,as shown in Fig. 1. The extremity of the valve-casing 3 is left smoothexternally, as shown at 17, and fitting around said end of the casing isa cap.18, which is thus free to be rotated thereon, said cap beingperipherally knurled, as at 19, to facilitate the turning of the same.The cap is provided at one side with a hollow stem 20, which isinternally threaded, as at 2l, to engage the threaded valve-stem 8 inthe manner shown in Fig. 1 for the purpose of drawing or forcing thevalve 7 firmlyL against the valve-seat after the tire has been inflatedand in order to prevent the escape of air. The cap 18 is provided on itsopposite side with a nut-operating extension 22, having at its end teeth23 or notches 24 to engage with the outer surfaces of the nut 16, whichis correspondinglynotched, as shown at 25.

l t kthe tire into the recess 26.

In order to inate the tire, the cap 18 is removed and a pump applied tothe valve-casing in the ordinary manner. After the tire has been inatedthe cap is placed on the casing and is turned until it draws thevalvestem 8 outwardly sufficiently to firmly seat the valve 7 andholdthe same tightly within the recess in the outer face of the head of thecasing. To y remove the valve, n valve' stem,'spring, and nut, the cap18 is reversed, so that the 'nut-operating extension` 22 'will projectinto the -yalvecasing whereupon by turningthe cap the nutV 16 may'beremoved fromfthe valve-stem, thus enabling the oper Ativelparts oftheyvalve; to be removed, exam-v ined, and repaired, yif necessary.

The inner surface ofthe head 5 is an'nzularly, lrecessed, as shown atv26, to receive the "tire 1 immediately adjacenttoV the body of 'thevvalve-casing, as shown in Fig. 1, and incon-i f nection therewith Iemploy a washer 27, providedwithvan annular rib 28 for compressing v TheWasher y27 is provided on its opposite side with a recessv 29,

in'which `lits a nut 30, by means vof which the desired pressure will belbrought against the washer 27 for rmly clamping the tirebe`l Y thevalvecasing to the rim.

tween thewasher 27 and head 5.k 31 desig-' vnate's a lock-nutadapted to,bear againstthe;l

inner face of theA rim 2 for rlnly connecting l. Thefvalve inustmtedjinFigs. 3 and 4 isth Y same in all essentials as that above described,l

with the exception that the means for fastening .the same tothe tire andrim are omitted` The valve-casing in this instance is adapted@ to beslipped intov the rubber valve-tube 322 of a tirean'd held by the usualstrand or strands. 33.VV l

From the foregoing descriptionit will `bej f `seen that I have provideda valve of simplez and effective construction which may be ap-y nectedwith the tire.

plied to any form of tire and which' may be readily removed by thevordinary rider. After the valve-casing is detached from the tire, byusing the nut-operating extension lof the cap the operative parts of thevalve contained Vin the casing maybe quickly removed, so

that everyp'iece of the valve may be carefully examined .and thenecessary repairs made, afterwhich the parts may be reassembled and 'thevalve as a whole again contant feature resides in the fact that thevalve may be forced with any desired pressure against'the valve-seat,thus forming a perfectl'y-air-'tight joint and preventing any pos#sibility ofthe airescaping from the tire.

4Having thus described the invention, what is claimed as new is-' vAnother very impor- WA valve-casing having a central throught Y boreandan exteriorly-smoo'th outerend porltion and also provided' with Aan`external recessed valve`-seat atone end,v in combination Awith adisk-shaped valve tittingwithin the recessed valve seat, a terminallythreaded .-valvevsten1','a Vremovable disk-shaped pack# `ing-Washerfitting around the stem` and against the inner'face o f the Valve, a nutadjustable on the lvalve'steni,`a coiled spring around said stem betweenthe nut and an internal shoulder within the casing, and a cap providedwith an annular flange loosely enibracingthe end. of the vcasing andhaving an internally-threaded stem to engagethe valvestem, and alsohaving an oppositely-projecting nut-operating extension, substantiallyas specified. v p

' In testimony whereof `I ax my signature 'in presence of two witnesses.

t CHANGY J.y MEAD. Witnessesz l y J. WM. ALLEN,

C. F. TRIBLER.

